Mir@k wrote:you have so much bacteria in your mouth that if they were visible you'd think "shiiiiiiiiit".

Humans have so much mouth bacteria that human bites are septic. Not as bad as a Komodo dragon's, but worse than just about everything else, and more dangerous to other humans than most actually poisonous bites to be found in nature.

There is so much bacteria in a human body that they outnumber human cells by an order of magnitude or so, coming to a couple percent of the total body mass.

Riz wrote:most of an atom is empty space, so while you're sitting at your computer remember that it, the chair you're sitting on, and even you, are mostly not there.

It's actually stranger than that. Protons, neutrons, and electrons are indeed very much smaller than atoms (the nucleus compared to the whole atom is like a marble in the middle of a sports arena, where the marble weighs more than a thousand times as much as the arena), but the electrons do not occupy discrete locations such that the majority of the atom's volume can properly be said to be empty. Instead, electrons occupy clouds of probability that intersect, overlap, and occupy the volume of atoms. In molecules, those clouds interact to form interatomic bonds.

I'm pretty sure I read that molecules don't like to touch each other so we are not actually touching anything ever. so if we sit we are not actually touching the chair we're being repelled by the molecules of the chair, so in effect we're floating on a quantum level.

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